arXivDaily arXiv每日学术速递 周一至周五更新
arXiv physics/0605120physics.ins-det
收藏

多通道、大容量、长漂移液氩TPC中的新型DAQ结构

A novel architecture for DAQ in multi-channel, large volume, long drift Liquid Argon TPC

S. Centro, G. Meng, F. Pietropaolo, S. Ventura

摘要:

近年来,人们对多吨级液氩时间投影室(LAr TPC)产生了很大的兴趣。物理问题是非常具有挑战性的,但是自由电子的长漂移和足够长的寿命的技术问题至今没有解决。还应该考虑到这样大的体积所需的极大量的通道。在本文中,我们提出了一个架构的DAQ,是基于最近的发展,在消费电子产品,提供了一个相当有趣的价格,旨在高分辨率的三角积分转换的组件。这种类型的ADC在HEP实验中根本不受欢迎,在HEP实验中,通常应该转换和记录与事件相关的信号,这些信号在时间上定义明确(触发)。然而,在LAr-TPC中,我们必须处理应连续转换和记录的波形,这是delta-sigma ADC应用的最重要情况。

英文摘要:

Recently a large interest has been shown for multi-ton Liquid Argon Time-Projection-Chambers (LAr-TPC). The physics issues are very challenging, but the technical problem of long drifts and adequately long life-time of free electrons are not solved at all so far. Also one should take into account the extremely large number of channels required for such large volumes. In this paper we propose an architecture for DAQ that is based on recent developments in consumer electronics that made available, at a quite interesting price, components aimed to high-resolution delta-sigma conversion. This type of ADC is not at all popular in HEP experiments where normally signals related to events, well defined in time (triggered), should be converted and recorded. In the LAr-TPC however we have to deal rather with waveforms that should be converted and recorded continuously, that is the paramount case of delta-sigma ADC application.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑